METHOD FOR MEASURING BRIDGE SCOUR USING OPTICAL FIBER SENSOR

摘要

PURPOSE: A method of measuring bridge abrasion using an optical fiber sensor is provided to measure bridge abrasion in real time by drastically reducing an analysis time due to a relatively simple structure. CONSTITUTION: A method of measuring bridge abrasion using an optical fiber sensor is as follows. Temperature-related reference data and abrasion related reference position data are set(S120). The temperature changes of the water surface of the earth surface under water are sensed using the optical fiber sensor(S130). The changed positions of the water temperature and the air temperature are perceived based on the temperature related reference data(S140). The temperature change locations of the water surface and the earth surface under water are perceived(S150). The heights of the water surface and the earth surface under water are calculated from the base location of the lower part of the bridge(S160). The bridge abrasion is calculated by comparing the calculated heights with the set abrasion related reference position data(S170). The bridge abrasion distinguishes the difference between the earth temperature, the water temperature and the air temperature.